I am looking for some help with afermarket products for my 400ex. I was recently in a pretty bad wipe-out at Rausch Creek in Pa. and the subframe on my bike was bent to a 90 degree angle. That seems easy enough to replace because it is a bolt-on. What I really need is advice on a new exhaust for this quad. The stoclk pipe was also twisted and mangled. I like the fact that the stock pipe is really quiet yet to replace the factory pipe is about as much $$ as adding an aftermarket pipe. Any opinions about the best of both worlds: power without so much noise. FMF or White Bros. Also I have been riding for about 15 years and never had skidplates. Am I nuts? I ask these questions because my wife is giving me some extra $$ to fix this thing back up.....so the more accessories the better!!!
Thanks for your answers

 

The White Bros. E-series & the CT Racing pipe put out the best horsepower from what I've seen.
The following is a list I have.
Brand, hp @ 4000rpm, peak hp, sound level, weight, price

Honda, 13.0, 26.9, 88db, 8.6 lb, $187.50
Big Gun (standard), 15.4, 27.2, 98db, 3.8 lb, $299.95
Big Gun (quiet), 15.2, 26.3, 94db, 3.9 lb, $339.95
CT Racing (12 dics), 16.3, 27.9, 102db, 6.0 lb, $299.00
FMF Power Core, 14.7, 26.7, 100db, 4.6 lb, $269.99
Graydon, 15.6, 27.1, 99db, 5.2 lb, $295.00
Pro Circuit T-4, 15.9, 27.4, 95db, 3.6 lb, $250.00
Stroker SX1, 15.7, 26.9, 94db, 5.0 lb, $235.00
White Bros. E-Series, 14.7, 27.9, 95db, 5.1 lb, $259.95
White Bros. R4, 15.1, 27.1, 97db, 3.9 lb, $244.95
Yoshimura RS-3, 15.5, 27.6, 95db, 4.8 lb, $338.00

 

400exJumper;

Thanks for the list that really helps me to see which pipes are loudest and I think my decision is going to be between the White Bros R-4 and E-series! I know I am going to have to bear a little more noise than I am used to, especially since the stock pipe is only knocking out 88 db
Thanks again!